AlmaLinux OS 9 must not have the tuned package installed.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-269353	ALMA-09-030930	SV-269353r1050236_rule		Medium

Description

The tuned package contains a daemon that tunes the system settings dynamically. It does so by monitoring the usage of several system components periodically. Based on that information, components will then be put into lower or higher power savings modes to adapt to the current usage. The tuned package is not needed for normal OS operations.

STIG	Date
CloudLinux AlmaLinux OS 9 Security Technical Implementation Guide	2025-05-22

Details

Check Text (C-73384r1048435_chk)

Verify that the tuned package is not installed with the following command:

$ dnf list --installed tuned

Error: No matching Packages to list

If the "tuned" package is installed and is not documented with the information system security officer (ISSO) as an operational requirement, this is a finding.

Fix Text (F-73285r1048436_fix)

Remove the tuned package with the following command:

$ dnf remove tuned